The Real Madrid goalkeeper has been one of those criticised as the Spanish champions’ have laboured so far this season.
He told Madrid’s official website: “You take it (the criticism) with a sense of humour. You have to respect people’s right to criticize. As long as it’s constructive criticism, it’s a positive thing.
“When you’ve been at the top and in a club like Real Madrid this long you know that in two or three matches things can change.
“I’ve been living many years with this. You have to keep going and try to turn those dissenting voices around.”